dll/win32/shell32/wine/pidl.c

   1 /*
   2  *    pidl Handling
   3  *
   4  *    Copyright 1998    Juergen Schmied
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  * NOTES
  21  *  a pidl == NULL means desktop and is legal
  22  *
  23  */
  24
  25 #include <wine/config.h>
  26
  27 #define WIN32_NO_STATUS
  28 #define _INC_WINDOWS
  29 #define COBJMACROS
  30 #define NONAMELESSUNION
  31 #define NONAMELESSSTRUCT
  32
  33 #include <windef.h>
  34 #include <winbase.h>
  35 #include <shlobj.h>
  36 #include <undocshell.h>
  37 #include <shlwapi.h>
  38 #include <shlguid_undoc.h>
  39 #include <wine/debug.h>
  40 #include <wine/unicode.h>
  41
  42 #include "pidl.h"
  43 #include "shell32_main.h"
  44 #include "shresdef.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  47 WINE_DECLARE_DEBUG_CHANNEL(shell);
  48
  49 /* from comctl32.dll */
  50 extern LPVOID WINAPI Alloc(INT);
  51 extern BOOL WINAPI Free(LPVOID);
  52
  53 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl);
  54 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl);
  55
  56 /*************************************************************************
  57  * ILGetDisplayNameExA
  58  *
  59  * Retrieves the display name of an ItemIDList
  60  *
  61  * PARAMS
  62  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  63  *  pidl       [I]   ItemIDList relative to the psf to get the display name for
  64  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  65  *  type       [I]   Type of display name to retrieve
  66  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  67  *                    1 = SHGDN_NORMAL relative to the root folder
  68  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  69  *
  70  * RETURNS
  71  *  True if the display name could be retrieved successfully, False otherwise
  72  */
  73 static BOOL ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  74 {
  75     BOOL ret = FALSE;
  76     WCHAR wPath[MAX_PATH];
  77
  78     TRACE("%p %p %p %d\n", psf, pidl, path, type);
  79
  80     if (!pidl || !path)
  81         return FALSE;
  82
  83     ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  84     WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  85     TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  86
  87     return ret;
  88 }
  89
  90 BOOL ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  91 {
  92     LPSHELLFOLDER psfParent, lsf = psf;
  93     HRESULT ret = NO_ERROR;
  94     LPCITEMIDLIST pidllast;
  95     STRRET strret;
  96     DWORD flag;
  97
  98     TRACE("%p %p %p %x\n", psf, pidl, path, type);
  99
 100     if (!pidl || !path)
 101         return FALSE;
 102
 103     if (!lsf)
 104     {
 105         ret = SHGetDesktopFolder(&lsf);
 106         if (FAILED(ret))
 107             return FALSE;
 108     }
 109
 110     if (type <= 2)
 111     {
 112         switch (type)
 113         {
 114             case ILGDN_FORPARSING:
 115                 flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 116                 break;
 117             case ILGDN_NORMAL:
 118                 flag = SHGDN_NORMAL;
 119                 break;
 120             case ILGDN_INFOLDER:
 121                 flag = SHGDN_INFOLDER;
 122                 break;
 123             default:
 124                 FIXME("Unknown type parameter = %x\n", type);
 125                 flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 126                 break;
 127         }
 128
 129         if (!*(const WORD*)pidl || type == ILGDN_FORPARSING)
 130         {
 131             ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 132             if (SUCCEEDED(ret))
 133             {
 134                 if(!StrRetToStrNW(path, MAX_PATH, &strret, pidl))
 135                     ret = E_FAIL;
 136             }
 137         }
 138         else
 139         {
 140             ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 141             if (SUCCEEDED(ret))
 142             {
 143                 ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 144                 if (SUCCEEDED(ret))
 145                 {
 146                     if(!StrRetToStrNW(path, MAX_PATH, &strret, pidllast))
 147                         ret = E_FAIL;
 148                 }
 149                 IShellFolder_Release(psfParent);
 150             }
 151         }
 152     }
 153
 154     TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 155
 156     if (!psf)
 157         IShellFolder_Release(lsf);
 158     return SUCCEEDED(ret);
 159 }
 160
 161 /*************************************************************************
 162  * ILGetDisplayNameEx        [SHELL32.186]
 163  */
 164 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 165 {
 166     TRACE_(shell)("%p %p %p %d\n", psf, pidl, path, type);
 167
 168     if (SHELL_OsIsUnicode())
 169         return ILGetDisplayNameExW(psf, pidl, path, type);
 170     return ILGetDisplayNameExA(psf, pidl, path, type);
 171 }
 172
 173 /*************************************************************************
 174  * ILGetDisplayName            [SHELL32.15]
 175  */
 176 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 177 {
 178     TRACE_(shell)("%p %p\n", pidl, path);
 179
 180     if (SHELL_OsIsUnicode())
 181         return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 182     return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 183 }
 184
 185 /*************************************************************************
 186  * ILFindLastID [SHELL32.16]
 187  *
 188  * NOTES
 189  *   observed: pidl=Desktop return=pidl
 190  */
 191 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 192 {
 193     LPCITEMIDLIST   pidlLast = pidl;
 194
 195     TRACE("(pidl=%p)\n",pidl);
 196
 197     if (!pidl)
 198         return NULL;
 199
 200     while (pidl->mkid.cb)
 201     {
 202         pidlLast = pidl;
 203         pidl = ILGetNext(pidl);
 204     }
 205     return (LPITEMIDLIST)pidlLast;
 206 }
 207
 208 /*************************************************************************
 209  * ILRemoveLastID [SHELL32.17]
 210  *
 211  * NOTES
 212  *   when pidl=Desktop return=FALSE
 213  */
 214 BOOL WINAPI ILRemoveLastID(LPITEMIDLIST pidl)
 215 {
 216     TRACE_(shell)("pidl=%p\n",pidl);
 217
 218     if (_ILIsEmpty(pidl))
 219         return FALSE;
 220     ILFindLastID(pidl)->mkid.cb = 0;
 221     return TRUE;
 222 }
 223
 224 /*************************************************************************
 225  * ILClone [SHELL32.18]
 226  *
 227  * NOTES
 228  *    duplicate an idlist
 229  */
 230 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 231 {
 232     DWORD    len;
 233     LPITEMIDLIST  newpidl;
 234
 235     if (!pidl)
 236         return NULL;
 237
 238     len = ILGetSize(pidl);
 239     newpidl = SHAlloc(len);
 240     if (newpidl)
 241         memcpy(newpidl,pidl,len);
 242
 243     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 244     pdump(pidl);
 245
 246     return newpidl;
 247 }
 248
 249 /*************************************************************************
 250  * ILCloneFirst [SHELL32.19]
 251  *
 252  * NOTES
 253  *  duplicates the first idlist of a complex pidl
 254  */
 255 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 256 {
 257     DWORD len;
 258     LPITEMIDLIST pidlNew = NULL;
 259
 260     TRACE("pidl=%p\n", pidl);
 261     pdump(pidl);
 262
 263     if (pidl)
 264     {
 265         len = pidl->mkid.cb;
 266         pidlNew = SHAlloc(len+2);
 267         if (pidlNew)
 268         {
 269             memcpy(pidlNew,pidl,len+2);        /* 2 -> mind a desktop pidl */
 270
 271             if (len)
 272                 ILGetNext(pidlNew)->mkid.cb = 0x00;
 273         }
 274     }
 275     TRACE("-- newpidl=%p\n",pidlNew);
 276
 277     return pidlNew;
 278 }
 279
 280 /*************************************************************************
 281  * ILLoadFromStream (SHELL32.26)
 282  *
 283  * NOTES
 284  *   the first two bytes are the len, the pidl is following then
 285  */
 286 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 287 {
 288     WORD        wLen = 0;
 289     DWORD       dwBytesRead;
 290     HRESULT     ret = E_FAIL;
 291
 292
 293     TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 294
 295     SHFree(*ppPidl);
 296     *ppPidl = NULL;
 297
 298     IStream_AddRef (pStream);
 299
 300     if (SUCCEEDED(IStream_Read(pStream, &wLen, 2, &dwBytesRead)))
 301     {
 302         TRACE("PIDL length is %d\n", wLen);
 303         if (wLen != 0)
 304         {
 305             *ppPidl = SHAlloc (wLen);
 306             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
 307             {
 308                 TRACE("Stream read OK\n");
 309                 ret = S_OK;
 310             }
 311             else
 312             {
 313                 WARN("reading pidl failed\n");
 314                 SHFree(*ppPidl);
 315                 *ppPidl = NULL;
 316             }
 317         }
 318         else
 319         {
 320             *ppPidl = NULL;
 321             ret = S_OK;
 322         }
 323     }
 324
 325     /* we are not yet fully compatible */
 326     if (*ppPidl && !pcheck(*ppPidl))
 327     {
 328         WARN("Check failed\n");
 329         SHFree(*ppPidl);
 330         *ppPidl = NULL;
 331     }
 332
 333     IStream_Release (pStream);
 334     TRACE("done\n");
 335     return ret;
 336 }
 337
 338 /*************************************************************************
 339  * ILSaveToStream (SHELL32.27)
 340  *
 341  * NOTES
 342  *   the first two bytes are the len, the pidl is following then
 343  */
 344 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 345 {
 346     WORD        wLen = 0;
 347     HRESULT        ret = E_FAIL;
 348
 349     TRACE_(shell)("%p %p\n", pStream, pPidl);
 350
 351     IStream_AddRef (pStream);
 352
 353     wLen = ILGetSize(pPidl);
 354
 355     if (SUCCEEDED(IStream_Write(pStream, &wLen, 2, NULL)))
 356     {
 357         if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 358             ret = S_OK;
 359     }
 360     IStream_Release (pStream);
 361
 362     return ret;
 363 }
 364
 365 /*************************************************************************
 366  * SHILCreateFromPath        [SHELL32.28]
 367  *
 368  * Create an ItemIDList from a path
 369  *
 370  * PARAMS
 371  *  path       [I]
 372  *  ppidl      [O]
 373  *  attributes [I/O] requested attributes on call and actual attributes when
 374  *                   the function returns
 375  *
 376  * RETURNS
 377  *  NO_ERROR if successful, or an OLE errer code otherwise
 378  *
 379  * NOTES
 380  *  Wrapper for IShellFolder_ParseDisplayName().
 381  */
 382 HRESULT WINAPI SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 383 {
 384     WCHAR lpszDisplayName[MAX_PATH];
 385
 386     TRACE_(shell)("%s %p 0x%08x\n", path, ppidl, attributes ? *attributes : 0);
 387
 388     if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 389         lpszDisplayName[MAX_PATH-1] = 0;
 390
 391     return SHILCreateFromPathW(lpszDisplayName, ppidl, attributes);
 392 }
 393
 394 HRESULT WINAPI SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 395 {
 396     LPSHELLFOLDER sf;
 397     DWORD pchEaten;
 398     HRESULT ret = E_FAIL;
 399
 400     TRACE_(shell)("%s %p 0x%08x\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 401
 402     if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 403     {
 404         ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 405         IShellFolder_Release(sf);
 406     }
 407     return ret;
 408 }
 409
 410 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 411 {
 412     if ( SHELL_OsIsUnicode())
 413         return SHILCreateFromPathW (path, ppidl, attributes);
 414     return SHILCreateFromPathA (path, ppidl, attributes);
 415 }
 416
 417 /*************************************************************************
 418  * SHCloneSpecialIDList      [SHELL32.89]
 419  *
 420  * Create an ItemIDList to one of the special folders.
 421
 422  * PARAMS
 423  *  hwndOwner    [in]
 424  *  nFolder      [in]    CSIDL_xxxxx
 425  *  fCreate      [in]    Create folder if it does not exist
 426  *
 427  * RETURNS
 428  *  Success: The newly created pidl
 429  *  Failure: NULL, if inputs are invalid.
 430  *
 431  * NOTES
 432  *  exported by ordinal.
 433  *  Caller is responsible for deallocating the returned ItemIDList with the
 434  *  shells IMalloc interface, aka ILFree.
 435  */
 436 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, int nFolder, BOOL fCreate)
 437 {
 438     LPITEMIDLIST ppidl;
 439     TRACE_(shell)("(hwnd=%p,csidl=0x%x,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 440
 441     if (fCreate)
 442         nFolder |= CSIDL_FLAG_CREATE;
 443
 444     SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 445     return ppidl;
 446 }
 447
 448 /*************************************************************************
 449  * ILGlobalClone             [SHELL32.20]
 450  *
 451  * Clones an ItemIDList using Alloc.
 452  *
 453  * PARAMS
 454  *  pidl       [I]   ItemIDList to clone
 455  *
 456  * RETURNS
 457  *  Newly allocated ItemIDList.
 458  *
 459  * NOTES
 460  *  exported by ordinal.
 461  */
 462 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 463 {
 464     DWORD    len;
 465     LPITEMIDLIST  newpidl;
 466
 467     if (!pidl)
 468         return NULL;
 469
 470     len = ILGetSize(pidl);
 471     newpidl = Alloc(len);
 472     if (newpidl)
 473         memcpy(newpidl,pidl,len);
 474
 475     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 476     pdump(pidl);
 477
 478     return newpidl;
 479 }
 480
 481 /*************************************************************************
 482  * ILIsEqual [SHELL32.21]
 483  *
 484  */
 485 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 486 {
 487     char    szData1[MAX_PATH];
 488     char    szData2[MAX_PATH];
 489
 490     LPCITEMIDLIST pidltemp1 = pidl1;
 491     LPCITEMIDLIST pidltemp2 = pidl2;
 492
 493     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 494
 495     /*
 496      * Explorer reads from registry directly (StreamMRU),
 497      * so we can only check here
 498      */
 499     if (!pcheck(pidl1) || !pcheck (pidl2))
 500         return FALSE;
 501
 502     pdump (pidl1);
 503     pdump (pidl2);
 504
 505     if (!pidl1 || !pidl2)
 506         return FALSE;
 507
 508     while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 509     {
 510         _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 511         _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 512
 513         if (strcasecmp( szData1, szData2 ))
 514             return FALSE;
 515
 516         pidltemp1 = ILGetNext(pidltemp1);
 517         pidltemp2 = ILGetNext(pidltemp2);
 518     }
 519
 520     if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 521         return TRUE;
 522
 523     return FALSE;
 524 }
 525
 526 /*************************************************************************
 527  * ILIsParent                [SHELL32.23]
 528  *
 529  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 530  *
 531  * PARAMS
 532  *  pidlParent [I]
 533  *  pidlChild  [I]
 534  *  bImmediate [I]   only return true if the parent is the direct parent
 535  *                   of the child
 536  *
 537  * RETURNS
 538  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 539  *  False otherwise.
 540  *
 541  * NOTES
 542  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 543  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 544  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 545  *  child = a/b -> false if bImmediate is true
 546  *  child = a/b -> true if bImmediate is false
 547  */
 548 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 549 {
 550     char    szData1[MAX_PATH];
 551     char    szData2[MAX_PATH];
 552     LPCITEMIDLIST pParent = pidlParent;
 553     LPCITEMIDLIST pChild = pidlChild;
 554
 555     TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 556
 557     if (!pParent || !pChild)
 558         return FALSE;
 559
 560     while (pParent->mkid.cb && pChild->mkid.cb)
 561     {
 562         _ILSimpleGetText(pParent, szData1, MAX_PATH);
 563         _ILSimpleGetText(pChild, szData2, MAX_PATH);
 564
 565         if (strcasecmp( szData1, szData2 ))
 566             return FALSE;
 567
 568         pParent = ILGetNext(pParent);
 569         pChild = ILGetNext(pChild);
 570     }
 571
 572     /* child has shorter name than parent */
 573     if (pParent->mkid.cb)
 574         return FALSE;
 575
 576     /* not immediate descent */
 577     if ((!pChild->mkid.cb || ILGetNext(pChild)->mkid.cb) && bImmediate)
 578         return FALSE;
 579
 580     return TRUE;
 581 }
 582
 583 /*************************************************************************
 584  * ILFindChild               [SHELL32.24]
 585  *
 586  *  Compares elements from pidl1 and pidl2.
 587  *
 588  * PARAMS
 589  *  pidl1      [I]
 590  *  pidl2      [I]
 591  *
 592  * RETURNS
 593  *  pidl1 is desktop      pidl2
 594  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 595  *                        if there was at least one equal element
 596  *  pidl2 shorter pidl1   0
 597  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 598  *
 599  * NOTES
 600  *  exported by ordinal.
 601  */
 602 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 603 {
 604     char    szData1[MAX_PATH];
 605     char    szData2[MAX_PATH];
 606
 607     LPCITEMIDLIST pidltemp1 = pidl1;
 608     LPCITEMIDLIST pidltemp2 = pidl2;
 609     LPCITEMIDLIST ret=NULL;
 610
 611     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 612
 613     /* explorer reads from registry directly (StreamMRU),
 614        so we can only check here */
 615     if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 616         return FALSE;
 617
 618     pdump (pidl1);
 619     pdump (pidl2);
 620
 621     if (_ILIsDesktop(pidl1))
 622     {
 623         ret = pidl2;
 624     }
 625     else
 626     {
 627         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 628         {
 629             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 630             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 631
 632             if (strcasecmp(szData1,szData2))
 633                 break;
 634
 635             pidltemp1 = ILGetNext(pidltemp1);
 636             pidltemp2 = ILGetNext(pidltemp2);
 637             ret = pidltemp2;
 638         }
 639
 640         if (pidltemp1->mkid.cb)
 641             ret = NULL; /* elements of pidl1 left*/
 642     }
 643     TRACE_(shell)("--- %p\n", ret);
 644     return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 645 }
 646
 647 /*************************************************************************
 648  * ILCombine                 [SHELL32.25]
 649  *
 650  * Concatenates two complex ItemIDLists.
 651  *
 652  * PARAMS
 653  *  pidl1      [I]   first complex ItemIDLists
 654  *  pidl2      [I]   complex ItemIDLists to append
 655  *
 656  * RETURNS
 657  *  if both pidl's == NULL      NULL
 658  *  if pidl1 == NULL            cloned pidl2
 659  *  if pidl2 == NULL            cloned pidl1
 660  *  otherwise new pidl with pidl2 appended to pidl1
 661  *
 662  * NOTES
 663  *  exported by ordinal.
 664  *  Does not destroy the passed in ItemIDLists!
 665  */
 666 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 667 {
 668     DWORD    len1,len2;
 669     LPITEMIDLIST  pidlNew;
 670
 671     TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 672
 673     if (!pidl1 && !pidl2) return NULL;
 674
 675     pdump (pidl1);
 676     pdump (pidl2);
 677
 678     if (!pidl1)
 679     {
 680         pidlNew = ILClone(pidl2);
 681         return pidlNew;
 682     }
 683
 684     if (!pidl2)
 685     {
 686         pidlNew = ILClone(pidl1);
 687         return pidlNew;
 688     }
 689
 690     len1  = ILGetSize(pidl1)-2;
 691     len2  = ILGetSize(pidl2);
 692     pidlNew  = SHAlloc(len1+len2);
 693
 694     if (pidlNew)
 695     {
 696         memcpy(pidlNew,pidl1,len1);
 697         memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 698     }
 699
 700     /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 701     return pidlNew;
 702 }
 703
 704 /*************************************************************************
 705  *  SHGetRealIDL [SHELL32.98]
 706  *
 707  * NOTES
 708  */
 709 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 710 {
 711     IDataObject* pDataObj;
 712     HRESULT hr;
 713
 714     hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
 715                              &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 716     if (SUCCEEDED(hr))
 717     {
 718         STGMEDIUM medium;
 719         FORMATETC fmt;
 720
 721         fmt.cfFormat = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
 722         fmt.ptd = NULL;
 723         fmt.dwAspect = DVASPECT_CONTENT;
 724         fmt.lindex = -1;
 725         fmt.tymed = TYMED_HGLOBAL;
 726
 727         hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 728
 729         IDataObject_Release(pDataObj);
 730
 731         if (SUCCEEDED(hr))
 732         {
 733             /*assert(pida->cidl==1);*/
 734             LPIDA pida = GlobalLock(medium.u.hGlobal);
 735
 736             LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 737             LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 738
 739             *pidlReal = ILCombine(pidl_folder, pidl_child);
 740
 741             if (!*pidlReal)
 742                 hr = E_OUTOFMEMORY;
 743
 744             GlobalUnlock(medium.u.hGlobal);
 745             GlobalFree(medium.u.hGlobal);
 746         }
 747     }
 748
 749     return hr;
 750 }
 751
 752 /*************************************************************************
 753  *  SHLogILFromFSIL [SHELL32.95]
 754  *
 755  * NOTES
 756  *  pild = CSIDL_DESKTOP    ret = 0
 757  *  pild = CSIDL_DRIVES     ret = 0
 758  */
 759 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 760 {
 761     FIXME("(pidl=%p)\n",pidl);
 762
 763     pdump(pidl);
 764
 765     return 0;
 766 }
 767
 768 /*************************************************************************
 769  * ILGetSize                 [SHELL32.152]
 770  *
 771  * Gets the byte size of an ItemIDList including zero terminator
 772  *
 773  * PARAMS
 774  *  pidl       [I]   ItemIDList
 775  *
 776  * RETURNS
 777  *  size of pidl in bytes
 778  *
 779  * NOTES
 780  *  exported by ordinal
 781  */
 782 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 783 {
 784     LPCSHITEMID si;
 785     UINT len=0;
 786
 787     if (pidl)
 788     {
 789         si = &(pidl->mkid);
 790
 791         while (si->cb)
 792         {
 793             len += si->cb;
 794             si  = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
 795         }
 796         len += 2;
 797     }
 798     TRACE("pidl=%p size=%u\n",pidl, len);
 799     return len;
 800 }
 801
 802 /*************************************************************************
 803  * ILGetNext                 [SHELL32.153]
 804  *
 805  * Gets the next ItemID of an ItemIDList
 806  *
 807  * PARAMS
 808  *  pidl       [I]   ItemIDList
 809  *
 810  * RETURNS
 811  *  null -> null
 812  *  desktop -> null
 813  *  simple pidl -> pointer to 0x0000 element
 814  *
 815  * NOTES
 816  *  exported by ordinal.
 817  */
 818 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 819 {
 820     WORD len;
 821
 822     TRACE("%p\n", pidl);
 823
 824     if (pidl)
 825     {
 826         len =  pidl->mkid.cb;
 827         if (len)
 828         {
 829             pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
 830             TRACE("-- %p\n", pidl);
 831             return (LPITEMIDLIST)pidl;
 832         }
 833     }
 834     return NULL;
 835 }
 836
 837 /*************************************************************************
 838  * ILAppendID                [SHELL32.154]
 839  *
 840  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 841  * If bEnd is FALSE, inserts the item in the front of the list,
 842  * otherwise it adds the item to the end. (???)
 843  *
 844  * PARAMS
 845  *  pidl       [I]   ItemIDList to extend
 846  *  item       [I]   ItemID to prepend/append
 847  *  bEnd       [I]   Indicates if the item should be appended
 848  *
 849  * NOTES
 850  *  Destroys the passed in idlist! (???)
 851  */
 852 LPITEMIDLIST WINAPI ILAppendID(LPITEMIDLIST pidl, LPCSHITEMID item, BOOL bEnd)
 853 {
 854     LPITEMIDLIST idlRet;
 855     LPCITEMIDLIST itemid = (LPCITEMIDLIST)item;
 856
 857     WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 858
 859     pdump (pidl);
 860     pdump (itemid);
 861
 862     if (_ILIsDesktop(pidl))
 863     {
 864         idlRet = ILClone(itemid);
 865         SHFree (pidl);
 866         return idlRet;
 867     }
 868
 869     if (bEnd)
 870         idlRet = ILCombine(pidl, itemid);
 871     else
 872         idlRet = ILCombine(itemid, pidl);
 873
 874     SHFree(pidl);
 875     return idlRet;
 876 }
 877
 878 /*************************************************************************
 879  * ILFree                    [SHELL32.155]
 880  *
 881  * Frees memory (if not NULL) allocated by SHMalloc allocator
 882  *
 883  * PARAMS
 884  *  pidl         [I]
 885  *
 886  * RETURNS
 887  *  Nothing
 888  *
 889  * NOTES
 890  *  exported by ordinal
 891  */
 892 void WINAPI ILFree(LPITEMIDLIST pidl)
 893 {
 894     TRACE("(pidl=%p)\n",pidl);
 895     SHFree(pidl);
 896 }
 897
 898 /*************************************************************************
 899  * ILGlobalFree              [SHELL32.156]
 900  *
 901  * Frees memory (if not NULL) allocated by Alloc allocator
 902  *
 903  * PARAMS
 904  *  pidl         [I]
 905  *
 906  * RETURNS
 907  *  Nothing
 908  *
 909  * NOTES
 910  *  exported by ordinal.
 911  */
 912 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 913 {
 914     TRACE("%p\n", pidl);
 915
 916     Free(pidl);
 917 }
 918
 919 /*************************************************************************
 920  * ILCreateFromPathA         [SHELL32.189]
 921  *
 922  * Creates a complex ItemIDList from a path and returns it.
 923  *
 924  * PARAMS
 925  *  path         [I]
 926  *
 927  * RETURNS
 928  *  the newly created complex ItemIDList or NULL if failed
 929  *
 930  * NOTES
 931  *  exported by ordinal.
 932  */
 933 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 934 {
 935     LPITEMIDLIST pidlnew = NULL;
 936
 937     TRACE_(shell)("%s\n", debugstr_a(path));
 938
 939     if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 940         return pidlnew;
 941     return NULL;
 942 }
 943
 944 /*************************************************************************
 945  * ILCreateFromPathW         [SHELL32.190]
 946  *
 947  * See ILCreateFromPathA.
 948  */
 949 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 950 {
 951     LPITEMIDLIST pidlnew = NULL;
 952
 953     TRACE_(shell)("%s\n", debugstr_w(path));
 954
 955     if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 956         return pidlnew;
 957     return NULL;
 958 }
 959
 960 /*************************************************************************
 961  * ILCreateFromPath          [SHELL32.157]
 962  */
 963 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 964 {
 965     if ( SHELL_OsIsUnicode())
 966         return ILCreateFromPathW (path);
 967     return ILCreateFromPathA (path);
 968 }
 969
 970 /*************************************************************************
 971  * _ILParsePathW             [internal]
 972  *
 973  * Creates an ItemIDList from a path and returns it.
 974  *
 975  * PARAMS
 976  *  path         [I]   path to parse and convert into an ItemIDList
 977  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 978  *                     Bind Data object with
 979  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 980  *                     FileSystem Bind Data object
 981  *  ppidl        [O]   the newly create ItemIDList
 982  *  prgfInOut    [I/O] requested attributes on input and actual
 983  *                     attributes on return
 984  *
 985  * RETURNS
 986  *  NO_ERROR on success or an OLE error code
 987  *
 988  * NOTES
 989  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 990  *  creates a BindContext object and assigns a FileSystem Bind Data object
 991  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 992  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 993  *  to pass data about the current path element to the next object. This
 994  *  is used to avoid having to verify the current path element on disk, so
 995  *  that creating an ItemIDList from a nonexistent path still can work.
 996  */
 997 static HRESULT _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 998                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 999 {
1000     LPSHELLFOLDER pSF = NULL;
1001     LPBC pBC = NULL;
1002     HRESULT ret;
1003
1004     TRACE("%s %p %d (%p)->%p (%p)->0x%x\n", debugstr_w(path), lpFindFile, bBindCtx,
1005                                              ppidl, ppidl ? *ppidl : NULL,
1006                                              prgfInOut, prgfInOut ? *prgfInOut : 0);
1007
1008     ret = SHGetDesktopFolder(&pSF);
1009     if (FAILED(ret))
1010         return ret;
1011
1012     if (lpFindFile || bBindCtx)
1013         ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1014
1015     if (SUCCEEDED(ret))
1016     {
1017         ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1018     }
1019
1020     if (pBC)
1021     {
1022         IBindCtx_Release(pBC);
1023         pBC = NULL;
1024     }
1025
1026     IShellFolder_Release(pSF);
1027
1028     if (FAILED(ret) && ppidl)
1029         *ppidl = NULL;
1030
1031     TRACE("%s %p 0x%x\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1032
1033     return ret;
1034 }
1035
1036 /*************************************************************************
1037  * SHSimpleIDListFromPath    [SHELL32.162]
1038  *
1039  * Creates a simple ItemIDList from a path and returns it. This function
1040  * does not fail on nonexistent paths.
1041  *
1042  * PARAMS
1043  *  path         [I]   path to parse and convert into an ItemIDList
1044  *
1045  * RETURNS
1046  *  the newly created simple ItemIDList
1047  *
1048  * NOTES
1049  *  Simple in the name does not mean a relative ItemIDList but rather a
1050  *  fully qualified list, where only the file name is filled in and the
1051  *  directory flag for those ItemID elements this is known about, eg.
1052  *  it is not the last element in the ItemIDList or the actual directory
1053  *  exists on disk.
1054  *  exported by ordinal.
1055  */
1056 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA(LPCSTR lpszPath)
1057 {
1058     LPITEMIDLIST pidl = NULL;
1059     LPWSTR wPath = NULL;
1060     int len;
1061
1062     TRACE("%s\n", debugstr_a(lpszPath));
1063
1064     if (lpszPath)
1065     {
1066         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1067         wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1068         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1069     }
1070
1071     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1072
1073     HeapFree(GetProcessHeap(), 0, wPath);
1074     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1075     return pidl;
1076 }
1077
1078 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1079 {
1080     LPITEMIDLIST pidl = NULL;
1081
1082     TRACE("%s\n", debugstr_w(lpszPath));
1083
1084     _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1085     TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1086     return pidl;
1087 }
1088
1089 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1090 {
1091     if ( SHELL_OsIsUnicode())
1092         return SHSimpleIDListFromPathW (lpszPath);
1093     return SHSimpleIDListFromPathA (lpszPath);
1094 }
1095
1096 /*************************************************************************
1097  * SHGetDataFromIDListA [SHELL32.247]
1098  *
1099  * NOTES
1100  *  the pidl can be a simple one. since we can't get the path out of the pidl
1101  *  we have to take all data from the pidl
1102  */
1103 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1104                                     int nFormat, LPVOID dest, int len)
1105 {
1106     LPSTR filename, shortname;
1107     WIN32_FIND_DATAA * pfd;
1108
1109     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1110
1111     pdump(pidl);
1112     if (!psf || !dest)
1113         return E_INVALIDARG;
1114
1115     switch (nFormat)
1116     {
1117     case SHGDFIL_FINDDATA:
1118         pfd = dest;
1119
1120         if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
1121             return E_INVALIDARG;
1122
1123         if (len < sizeof(WIN32_FIND_DATAA))
1124             return E_INVALIDARG;
1125
1126         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1127         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1128         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1129         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1130
1131         filename = _ILGetTextPointer(pidl);
1132         shortname = _ILGetSTextPointer(pidl);
1133
1134         if (filename)
1135             lstrcpynA(pfd->cFileName, filename, sizeof(pfd->cFileName));
1136         else
1137             pfd->cFileName[0] = '\0';
1138
1139         if (shortname)
1140             lstrcpynA(pfd->cAlternateFileName, shortname, sizeof(pfd->cAlternateFileName));
1141         else
1142             pfd->cAlternateFileName[0] = '\0';
1143         return S_OK;
1144
1145     case SHGDFIL_NETRESOURCE:
1146     case SHGDFIL_DESCRIPTIONID:
1147         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1148         break;
1149
1150     default:
1151         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1152     }
1153
1154     return E_INVALIDARG;
1155 }
1156
1157 /*************************************************************************
1158  * SHGetDataFromIDListW [SHELL32.248]
1159  *
1160  */
1161 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1162                                     int nFormat, LPVOID dest, int len)
1163 {
1164     LPSTR filename, shortname;
1165     WIN32_FIND_DATAW * pfd = dest;
1166
1167     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1168
1169     pdump(pidl);
1170
1171     if (!psf || !dest)
1172         return E_INVALIDARG;
1173
1174     switch (nFormat)
1175     {
1176     case SHGDFIL_FINDDATA:
1177         pfd = dest;
1178
1179         if (_ILIsDrive(pidl))
1180             return E_INVALIDARG;
1181
1182         if (len < sizeof(WIN32_FIND_DATAW))
1183             return E_INVALIDARG;
1184
1185         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAW));
1186         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1187         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1188         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1189
1190         filename = _ILGetTextPointer(pidl);
1191         shortname = _ILGetSTextPointer(pidl);
1192
1193         if (!filename)
1194             pfd->cFileName[0] = '\0';
1195         else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1196             pfd->cFileName[MAX_PATH-1] = 0;
1197
1198         if (!shortname)
1199             pfd->cAlternateFileName[0] = '\0';
1200         else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1201             pfd->cAlternateFileName[13] = 0;
1202         return S_OK;
1203
1204     case SHGDFIL_NETRESOURCE:
1205     case SHGDFIL_DESCRIPTIONID:
1206         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1207         break;
1208
1209     default:
1210         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1211     }
1212
1213     return E_INVALIDARG;
1214 }
1215
1216 /*************************************************************************
1217  * SHGetPathFromIDListA        [SHELL32.@][NT 4.0: SHELL32.220]
1218  *
1219  * PARAMETERS
1220  *  pidl,   [IN] pidl
1221  *  pszPath [OUT] path
1222  *
1223  * RETURNS
1224  *  path from a passed PIDL.
1225  *
1226  * NOTES
1227  *    NULL returns FALSE
1228  *    desktop pidl gives path to desktop directory back
1229  *    special pidls returning FALSE
1230  */
1231 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1232 {
1233     WCHAR wszPath[MAX_PATH];
1234     BOOL bSuccess;
1235
1236     bSuccess = SHGetPathFromIDListW(pidl, wszPath);
1237     WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
1238
1239     return bSuccess;
1240 }
1241
1242 /*************************************************************************
1243  * SHGetPathFromIDListW             [SHELL32.@]
1244  *
1245  * See SHGetPathFromIDListA.
1246  */
1247 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1248 {
1249     HRESULT hr;
1250     LPCITEMIDLIST pidlLast;
1251     LPSHELLFOLDER psfFolder;
1252     DWORD dwAttributes;
1253     STRRET strret;
1254
1255     TRACE_(shell)("(pidl=%p,%p)\n", pidl, pszPath);
1256     pdump(pidl);
1257
1258     *pszPath = '\0';
1259     if (!pidl)
1260         return FALSE;
1261
1262     hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
1263     if (FAILED(hr))
1264     {
1265         ERR("SHBindToParent failed: %x\n", hr);
1266         return FALSE;
1267     }
1268
1269     dwAttributes = SFGAO_FILESYSTEM;
1270     hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
1271     if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
1272         WARN("Wrong dwAttributes or GetAttributesOf failed: %x\n", hr);
1273         IShellFolder_Release(psfFolder);
1274         return FALSE;
1275     }
1276
1277     hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
1278     IShellFolder_Release(psfFolder);
1279     if (FAILED(hr)) return FALSE;
1280
1281     hr = StrRetToBufW(&strret, pidlLast, pszPath, MAX_PATH);
1282
1283     TRACE_(shell)("-- %s, 0x%08x\n",debugstr_w(pszPath), hr);
1284     return SUCCEEDED(hr);
1285 }
1286
1287 /*************************************************************************
1288  *    SHBindToParent        [shell version 5.0]
1289  */
1290 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1291 {
1292     IShellFolder    * psfDesktop;
1293     HRESULT         hr=E_FAIL;
1294
1295     TRACE_(shell)("pidl=%p\n", pidl);
1296     pdump(pidl);
1297
1298     if (!pidl || !ppv)
1299         return E_INVALIDARG;
1300
1301     *ppv = NULL;
1302     if (ppidlLast)
1303         *ppidlLast = NULL;
1304
1305     hr = SHGetDesktopFolder(&psfDesktop);
1306     if (FAILED(hr))
1307         return hr;
1308
1309     if (_ILIsPidlSimple(pidl))
1310     {
1311         /* we are on desktop level */
1312         hr = IShellFolder_QueryInterface(psfDesktop, riid, ppv);
1313     }
1314     else
1315     {
1316         LPITEMIDLIST pidlParent = ILClone(pidl);
1317         ILRemoveLastID(pidlParent);
1318         hr = IShellFolder_BindToObject(psfDesktop, pidlParent, NULL, riid, ppv);
1319         SHFree (pidlParent);
1320     }
1321
1322     IShellFolder_Release(psfDesktop);
1323
1324     if (SUCCEEDED(hr) && ppidlLast)
1325         *ppidlLast = ILFindLastID(pidl);
1326
1327     TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08x\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1328     return hr;
1329 }
1330
1331 /*************************************************************************
1332  *    SHParseDisplayName        [shell version 6.0]
1333  */
1334 HRESULT WINAPI SHParseDisplayName(LPCWSTR pszName, IBindCtx *pbc,
1335     LPITEMIDLIST *ppidl, SFGAOF sfgaoIn, SFGAOF *psfgaoOut)
1336 {
1337     IShellFolder *psfDesktop;
1338     HRESULT         hr=E_FAIL;
1339     ULONG           dwAttr=sfgaoIn;
1340
1341     if(!ppidl)
1342         return E_INVALIDARG;
1343
1344     if (!pszName || !psfgaoOut)
1345     {
1346         *ppidl = NULL;
1347         return E_INVALIDARG;
1348     }
1349
1350     hr = SHGetDesktopFolder(&psfDesktop);
1351     if (FAILED(hr))
1352     {
1353         *ppidl = NULL;
1354         return hr;
1355     }
1356
1357     hr = IShellFolder_ParseDisplayName(psfDesktop, (HWND)NULL, pbc, (LPOLESTR)pszName, (ULONG *)NULL, ppidl, &dwAttr);
1358
1359     IShellFolder_Release(psfDesktop);
1360
1361     if (SUCCEEDED(hr))
1362         *psfgaoOut = dwAttr;
1363     else
1364         *ppidl = NULL;
1365
1366     return hr;
1367 }
1368
1369 #ifndef __REACTOS__
1370
1371 /*************************************************************************
1372  * SHGetNameFromIDList             [SHELL32.@]
1373  */
1374 HRESULT WINAPI SHGetNameFromIDList(PCIDLIST_ABSOLUTE pidl, SIGDN sigdnName, PWSTR *ppszName)
1375 {
1376     IShellFolder *psfparent;
1377     LPCITEMIDLIST child_pidl;
1378     STRRET disp_name;
1379     HRESULT ret;
1380
1381     TRACE("%p 0x%08x %p\n", pidl, sigdnName, ppszName);
1382
1383     *ppszName = NULL;
1384     ret = SHBindToParent(pidl, &IID_IShellFolder, (void**)&psfparent, &child_pidl);
1385     if(SUCCEEDED(ret))
1386     {
1387         switch(sigdnName)
1388         {
1389                                                 /* sigdnName & 0xffff */
1390         case SIGDN_NORMALDISPLAY:               /* SHGDN_NORMAL */
1391         case SIGDN_PARENTRELATIVEPARSING:       /* SHGDN_INFOLDER | SHGDN_FORPARSING */
1392         case SIGDN_PARENTRELATIVEEDITING:       /* SHGDN_INFOLDER | SHGDN_FOREDITING */
1393         case SIGDN_DESKTOPABSOLUTEPARSING:      /* SHGDN_FORPARSING */
1394         case SIGDN_DESKTOPABSOLUTEEDITING:      /* SHGDN_FOREDITING | SHGDN_FORADDRESSBAR*/
1395         case SIGDN_PARENTRELATIVEFORADDRESSBAR: /* SIGDN_INFOLDER | SHGDN_FORADDRESSBAR */
1396         case SIGDN_PARENTRELATIVE:              /* SIGDN_INFOLDER */
1397
1398             disp_name.uType = STRRET_WSTR;
1399             ret = IShellFolder_GetDisplayNameOf(psfparent, child_pidl,
1400                                                 sigdnName & 0xffff,
1401                                                 &disp_name);
1402             if(SUCCEEDED(ret))
1403                 ret = StrRetToStrW(&disp_name, pidl, ppszName);
1404
1405             break;
1406
1407         case SIGDN_FILESYSPATH:
1408             *ppszName = CoTaskMemAlloc(sizeof(WCHAR)*MAX_PATH);
1409             if(SHGetPathFromIDListW(pidl, *ppszName))
1410             {
1411                 TRACE("Got string %s\n", debugstr_w(*ppszName));
1412                 ret = S_OK;
1413             }
1414             else
1415             {
1416                 CoTaskMemFree(*ppszName);
1417                 ret = E_INVALIDARG;
1418             }
1419             break;
1420
1421         case SIGDN_URL:
1422         default:
1423             FIXME("Unsupported SIGDN %x\n", sigdnName);
1424             ret = E_FAIL;
1425         }
1426
1427         IShellFolder_Release(psfparent);
1428     }
1429     return ret;
1430 }
1431
1432 /*************************************************************************
1433  * SHGetIDListFromObject             [SHELL32.@]
1434  */
1435 HRESULT WINAPI SHGetIDListFromObject(IUnknown *punk, PIDLIST_ABSOLUTE *ppidl)
1436 {
1437     IPersistIDList *ppersidl;
1438     IPersistFolder2 *ppf2;
1439     IDataObject *pdo;
1440     IFolderView *pfv;
1441     HRESULT ret;
1442
1443     if(!punk)
1444         return E_NOINTERFACE;
1445
1446     *ppidl = NULL;
1447
1448     /* Try IPersistIDList */
1449     ret = IUnknown_QueryInterface(punk, &IID_IPersistIDList, (void**)&ppersidl);
1450     if(SUCCEEDED(ret))
1451     {
1452         TRACE("IPersistIDList (%p)\n", ppersidl);
1453         ret = IPersistIDList_GetIDList(ppersidl, ppidl);
1454         IPersistIDList_Release(ppersidl);
1455         if(SUCCEEDED(ret))
1456             return ret;
1457     }
1458
1459     /* Try IPersistFolder2 */
1460     ret = IUnknown_QueryInterface(punk, &IID_IPersistFolder2, (void**)&ppf2);
1461     if(SUCCEEDED(ret))
1462     {
1463         TRACE("IPersistFolder2 (%p)\n", ppf2);
1464         ret = IPersistFolder2_GetCurFolder(ppf2, ppidl);
1465         IPersistFolder2_Release(ppf2);
1466         if(SUCCEEDED(ret))
1467             return ret;
1468     }
1469
1470     /* Try IDataObject */
1471     ret = IUnknown_QueryInterface(punk, &IID_IDataObject, (void**)&pdo);
1472     if(SUCCEEDED(ret))
1473     {
1474         IShellItem *psi;
1475         TRACE("IDataObject (%p)\n", pdo);
1476         ret = SHGetItemFromDataObject(pdo, DOGIF_ONLY_IF_ONE,
1477                                       &IID_IShellItem, (void**)&psi);
1478         if(SUCCEEDED(ret))
1479         {
1480             ret = SHGetIDListFromObject((IUnknown*)psi, ppidl);
1481             IShellItem_Release(psi);
1482         }
1483         IDataObject_Release(pdo);
1484
1485         if(SUCCEEDED(ret))
1486             return ret;
1487     }
1488
1489     /* Try IFolderView */
1490     ret = IUnknown_QueryInterface(punk, &IID_IFolderView, (void**)&pfv);
1491     if(SUCCEEDED(ret))
1492     {
1493         IShellFolder *psf;
1494         TRACE("IFolderView (%p)\n", pfv);
1495         ret = IFolderView_GetFolder(pfv, &IID_IShellFolder, (void**)&psf);
1496         if(SUCCEEDED(ret))
1497         {
1498             /* We might be able to get IPersistFolder2 from a shellfolder. */
1499             ret = SHGetIDListFromObject((IUnknown*)psf, ppidl);
1500         }
1501         IFolderView_Release(pfv);
1502         return ret;
1503     }
1504
1505     return ret;
1506 }
1507
1508 #endif /* !__REACTOS__ */
1509
1510 /**************************************************************************
1511  *
1512  *        internal functions
1513  *
1514  *    ### 1. section creating pidls ###
1515  *
1516  *************************************************************************
1517  */
1518
1519 /* Basic PIDL constructor.  Allocates size + 5 bytes, where:
1520  * - two bytes are SHITEMID.cb
1521  * - one byte is PIDLDATA.type
1522  * - two bytes are the NULL PIDL terminator
1523  * Sets type of the returned PIDL to type.
1524  */
1525 static LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1526 {
1527     LPITEMIDLIST pidlOut = NULL;
1528
1529     pidlOut = SHAlloc(size + 5);
1530     if(pidlOut)
1531     {
1532         LPPIDLDATA pData;
1533         LPITEMIDLIST pidlNext;
1534
1535         ZeroMemory(pidlOut, size + 5);
1536         pidlOut->mkid.cb = size + 3;
1537
1538         pData = _ILGetDataPointer(pidlOut);
1539         if (pData)
1540             pData->type = type;
1541
1542         pidlNext = ILGetNext(pidlOut);
1543         if (pidlNext)
1544             pidlNext->mkid.cb = 0x00;
1545         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1546     }
1547
1548     return pidlOut;
1549 }
1550
1551 LPITEMIDLIST _ILCreateDesktop(void)
1552 {
1553     LPITEMIDLIST ret;
1554
1555     TRACE("()\n");
1556     ret = SHAlloc(2);
1557     if (ret)
1558         ret->mkid.cb = 0;
1559     return ret;
1560 }
1561
1562 LPITEMIDLIST _ILCreateMyComputer(void)
1563 {
1564     TRACE("()\n");
1565     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1566 }
1567
1568 LPITEMIDLIST _ILCreateMyDocuments(void)
1569 {
1570     TRACE("()\n");
1571     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1572 }
1573
1574 LPITEMIDLIST _ILCreateIExplore(void)
1575 {
1576     TRACE("()\n");
1577     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1578 }
1579
1580 LPITEMIDLIST _ILCreateControlPanel(void)
1581 {
1582     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1583
1584     TRACE("()\n");
1585     if (parent)
1586     {
1587         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1588
1589         if (cpl)
1590         {
1591             ret = ILCombine(parent, cpl);
1592             SHFree(cpl);
1593         }
1594         SHFree(parent);
1595     }
1596     return ret;
1597 }
1598
1599 LPITEMIDLIST _ILCreatePrinters(void)
1600 {
1601     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1602
1603     TRACE("()\n");
1604     if (parent)
1605     {
1606         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1607
1608         if (printers)
1609         {
1610             ret = ILCombine(parent, printers);
1611             SHFree(printers);
1612         }
1613         SHFree(parent);
1614     }
1615     return ret;
1616 }
1617
1618 LPITEMIDLIST _ILCreateNetwork(void)
1619 {
1620     TRACE("()\n");
1621     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1622 }
1623
1624 LPITEMIDLIST _ILCreateBitBucket(void)
1625 {
1626     TRACE("()\n");
1627     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1628 }
1629
1630 LPITEMIDLIST _ILCreateAdminTools(void)
1631 {
1632     TRACE("()\n");
1633     return _ILCreateGuid(PT_GUID, &CLSID_AdminFolderShortcut); //FIXME
1634 }
1635
1636 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1637 {
1638     LPITEMIDLIST pidlOut;
1639
1640     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1641     {
1642         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1643         if (pidlOut)
1644         {
1645             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1646
1647             pData->u.guid.guid = *guid;
1648             TRACE("-- create GUID-pidl %s\n",
1649                   debugstr_guid(&(pData->u.guid.guid)));
1650         }
1651     }
1652     else
1653     {
1654         WARN("%d: invalid type for GUID\n", type);
1655         pidlOut = NULL;
1656     }
1657     return pidlOut;
1658 }
1659
1660 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1661 {
1662     IID iid;
1663
1664     if (FAILED(SHCLSIDFromStringA(szGUID, &iid)))
1665     {
1666         ERR("%s is not a GUID\n", szGUID);
1667         return NULL;
1668     }
1669     return _ILCreateGuid(PT_GUID, &iid);
1670 }
1671
1672 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1673 {
1674     IID iid;
1675
1676     if (FAILED(SHCLSIDFromStringW(szGUID, &iid)))
1677     {
1678         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1679         return NULL;
1680     }
1681     return _ILCreateGuid(PT_GUID, &iid);
1682 }
1683
1684 LPITEMIDLIST _ILCreateFromFindDataW( const WIN32_FIND_DATAW *wfd )
1685 {
1686     char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1687     DWORD   len, len1, wlen, alen;
1688     LPITEMIDLIST pidl;
1689     PIDLTYPE type;
1690
1691     if (!wfd)
1692         return NULL;
1693
1694     TRACE("(%s, %s)\n",debugstr_w(wfd->cAlternateFileName), debugstr_w(wfd->cFileName));
1695
1696     /* prepare buffer with both names */
1697     len = WideCharToMultiByte(CP_ACP,0,wfd->cFileName,-1,buff,MAX_PATH,NULL,NULL);
1698     len1 = WideCharToMultiByte(CP_ACP,0,wfd->cAlternateFileName,-1, buff+len, sizeof(buff)-len, NULL, NULL);
1699     alen = len + len1;
1700
1701     type = (wfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1702
1703     wlen = lstrlenW(wfd->cFileName) + 1;
1704     pidl = _ILAlloc(type, FIELD_OFFSET(FileStruct, szNames[alen + (alen & 1)]) +
1705                     FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD));
1706     if (pidl)
1707     {
1708         LPPIDLDATA pData = _ILGetDataPointer(pidl);
1709         FileStruct *fs = &pData->u.file;
1710         FileStructW *fsw;
1711         WORD *pOffsetW;
1712
1713         FileTimeToDosDateTime( &wfd->ftLastWriteTime, &fs->uFileDate, &fs->uFileTime);
1714         fs->dwFileSize = wfd->nFileSizeLow;
1715         fs->uFileAttribs = wfd->dwFileAttributes;
1716         memcpy(fs->szNames, buff, alen);
1717
1718         fsw = (FileStructW*)(pData->u.file.szNames + alen + (alen & 0x1));
1719         fsw->cbLen = FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD);
1720         FileTimeToDosDateTime( &wfd->ftCreationTime, &fsw->uCreationDate, &fsw->uCreationTime);
1721         FileTimeToDosDateTime( &wfd->ftLastAccessTime, &fsw->uLastAccessDate, &fsw->uLastAccessTime);
1722         memcpy(fsw->wszName, wfd->cFileName, wlen * sizeof(WCHAR));
1723
1724         pOffsetW = (WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
1725         *pOffsetW = (LPBYTE)fsw - (LPBYTE)pidl;
1726         TRACE("-- Set Value: %s\n",debugstr_w(fsw->wszName));
1727     }
1728     return pidl;
1729
1730 }
1731
1732 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1733 {
1734     HANDLE hFile;
1735     WIN32_FIND_DATAW stffile;
1736
1737     if (!ppidl)
1738         return E_INVALIDARG;
1739
1740     hFile = FindFirstFileW(szPath, &stffile);
1741     if (hFile == INVALID_HANDLE_VALUE)
1742         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1743
1744     FindClose(hFile);
1745
1746     *ppidl = _ILCreateFromFindDataW(&stffile);
1747
1748     return *ppidl ? S_OK : E_OUTOFMEMORY;
1749 }
1750
1751 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1752 {
1753     LPITEMIDLIST pidlOut;
1754
1755     TRACE("(%s)\n",debugstr_w(lpszNew));
1756
1757     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1758     if (pidlOut)
1759     {
1760         LPSTR pszDest;
1761
1762         pszDest = _ILGetTextPointer(pidlOut);
1763         if (pszDest)
1764         {
1765             strcpy(pszDest, "x:\\");
1766             pszDest[0]=toupperW(lpszNew[0]);
1767             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1768         }
1769     }
1770     return pidlOut;
1771 }
1772
1773 LPITEMIDLIST _ILCreateEntireNetwork(void)
1774 {
1775     LPITEMIDLIST pidlOut;
1776
1777     TRACE("\n");
1778
1779     pidlOut = _ILAlloc(PT_NETWORK, FIELD_OFFSET(PIDLDATA, u.network.szNames[sizeof("Entire Network")]));
1780     if (pidlOut)
1781     {
1782         LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1783
1784         pData->u.network.dummy = 0;
1785         strcpy(pData->u.network.szNames, "Entire Network");
1786     }
1787     return pidlOut;
1788 }
1789
1790 /**************************************************************************
1791  *  _ILGetDrive()
1792  *
1793  *  Gets the text for the drive eg. 'c:\'
1794  *
1795  * RETURNS
1796  *  strlen (lpszText)
1797  */
1798 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1799 {
1800     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1801
1802     if(_ILIsMyComputer(pidl))
1803         pidl = ILGetNext(pidl);
1804
1805     if (pidl && _ILIsDrive(pidl))
1806         return _ILSimpleGetText(pidl, pOut, uSize);
1807
1808     return 0;
1809 }
1810
1811 /**************************************************************************
1812  *
1813  *    ### 2. section testing pidls ###
1814  *
1815  **************************************************************************
1816  *  _ILIsUnicode()
1817  *  _ILIsDesktop()
1818  *  _ILIsMyComputer()
1819  *  _ILIsSpecialFolder()
1820  *  _ILIsDrive()
1821  *  _ILIsFolder()
1822  *  _ILIsValue()
1823  *  _ILIsPidlSimple()
1824  */
1825 BOOL _ILIsUnicode(LPCITEMIDLIST pidl)
1826 {
1827     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1828
1829     TRACE("(%p)\n",pidl);
1830
1831     return (pidl && lpPData && PT_VALUEW == lpPData->type);
1832 }
1833
1834 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1835 {
1836     TRACE("(%p)\n",pidl);
1837
1838     return !pidl || !pidl->mkid.cb;
1839 }
1840
1841 BOOL _ILIsMyDocuments(LPCITEMIDLIST pidl)
1842 {
1843     IID *iid = _ILGetGUIDPointer(pidl);
1844
1845     TRACE("(%p)\n", pidl);
1846
1847     if (iid)
1848         return IsEqualIID(iid, &CLSID_MyDocuments);
1849     return FALSE;
1850 }
1851
1852 BOOL _ILIsControlPanel(LPCITEMIDLIST pidl)
1853 {
1854     IID *iid = _ILGetGUIDPointer(pidl);
1855
1856     TRACE("(%p)\n", pidl);
1857
1858     if (iid)
1859         return IsEqualIID(iid, &CLSID_ControlPanel);
1860     return FALSE;
1861 }
1862
1863 BOOL _ILIsNetHood(LPCITEMIDLIST pidl)
1864 {
1865     IID *iid = _ILGetGUIDPointer(pidl);
1866
1867     TRACE("(%p)\n", pidl);
1868
1869     if (iid)
1870         return IsEqualIID(iid, &CLSID_NetworkPlaces);
1871     return FALSE;
1872 }
1873
1874
1875 LPITEMIDLIST _ILCreateNetHood(void)
1876 {
1877     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1878 }
1879
1880 LPITEMIDLIST _ILCreateFont(void)
1881 {
1882     return _ILCreateGuid(PT_GUID, &CLSID_FontsFolderShortcut);
1883 }
1884
1885 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1886 {
1887     REFIID iid = _ILGetGUIDPointer(pidl);
1888
1889     TRACE("(%p)\n",pidl);
1890
1891     if (iid)
1892         return IsEqualIID(iid, &CLSID_MyComputer);
1893     return FALSE;
1894 }
1895
1896 BOOL _ILIsPrinter(LPCITEMIDLIST pidl)
1897 {
1898     IID *iid = _ILGetGUIDPointer(pidl);
1899
1900     TRACE("(%p)\n", pidl);
1901
1902     if (iid)
1903         return IsEqualIID(iid, &CLSID_Printers);
1904     return FALSE;
1905 }
1906
1907 BOOL _ILIsBitBucket(LPCITEMIDLIST pidl)
1908 {
1909     IID *iid = _ILGetGUIDPointer(pidl);
1910
1911     TRACE("(%p)\n", pidl);
1912
1913     if (iid)
1914         return IsEqualIID(iid, &CLSID_RecycleBin);
1915     return FALSE;
1916 }
1917
1918 BOOL _ILIsAdminTools(LPCITEMIDLIST pidl)
1919 {
1920     IID *iid = _ILGetGUIDPointer(pidl);
1921
1922     TRACE("(%p)\n", pidl);
1923
1924     if (iid)
1925         return IsEqualIID(iid, &CLSID_AdminFolderShortcut);
1926     else
1927         return FALSE;
1928 }
1929
1930 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1931 {
1932     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1933
1934     TRACE("(%p)\n",pidl);
1935
1936     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1937               (pidl && pidl->mkid.cb == 0x00)
1938             ));
1939 }
1940
1941 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1942 {
1943     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1944
1945     TRACE("(%p)\n",pidl);
1946
1947     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1948                     PT_DRIVE1 == lpPData->type ||
1949                     PT_DRIVE2 == lpPData->type ||
1950                     PT_DRIVE3 == lpPData->type));
1951 }
1952
1953 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1954 {
1955     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1956
1957     TRACE("(%p)\n",pidl);
1958
1959     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1960 }
1961
1962 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1963 {
1964     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1965
1966     TRACE("(%p)\n",pidl);
1967
1968     return (pidl && lpPData && PT_VALUE == lpPData->type);
1969 }
1970
1971 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1972 {
1973     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1974
1975     TRACE("(%p)\n",pidl);
1976
1977     return (pidl && lpPData && (lpPData->type == 0));
1978 }
1979
1980 /**************************************************************************
1981  *    _ILIsPidlSimple
1982  */
1983 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1984 {
1985     BOOL ret = TRUE;
1986
1987     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1988     {
1989         WORD len = pidl->mkid.cb;
1990         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1991
1992         if (pidlnext->mkid.cb)
1993             ret = FALSE;
1994     }
1995
1996     TRACE("%s\n", ret ? "Yes" : "No");
1997     return ret;
1998 }
1999
2000 /**************************************************************************
2001  *
2002  *    ### 3. section getting values from pidls ###
2003  */
2004
2005  /**************************************************************************
2006  *  _ILSimpleGetText
2007  *
2008  * gets the text for the first item in the pidl (eg. simple pidl)
2009  *
2010  * returns the length of the string
2011  */
2012 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
2013 {
2014     DWORD        dwReturn=0;
2015     LPSTR        szSrc;
2016     LPWSTR       szSrcW;
2017     GUID const * riid;
2018     char szTemp[MAX_PATH];
2019
2020     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
2021
2022     if (!pidl)
2023         return 0;
2024
2025     if (szOut)
2026         *szOut = 0;
2027
2028     if (_ILIsDesktop(pidl))
2029     {
2030         /* desktop */
2031         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
2032         {
2033             if (szOut)
2034                 lstrcpynA(szOut, szTemp, uOutSize);
2035
2036             dwReturn = strlen (szTemp);
2037         }
2038     }
2039     else if (( szSrc = _ILGetTextPointer(pidl) ))
2040     {
2041         /* filesystem */
2042         if (szOut)
2043             lstrcpynA(szOut, szSrc, uOutSize);
2044
2045         dwReturn = strlen(szSrc);
2046     }
2047     else if (( szSrcW = _ILGetTextPointerW(pidl) ))
2048     {
2049         /* unicode filesystem */
2050         WideCharToMultiByte(CP_ACP,0,szSrcW, -1, szTemp, MAX_PATH, NULL, NULL);
2051
2052         if (szOut)
2053             lstrcpynA(szOut, szTemp, uOutSize);
2054
2055         dwReturn = strlen (szTemp);
2056     }
2057     else if (( riid = _ILGetGUIDPointer(pidl) ))
2058     {
2059         /* special folder */
2060         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
2061         {
2062             if (szOut)
2063                 lstrcpynA(szOut, szTemp, uOutSize);
2064
2065             dwReturn = strlen (szTemp);
2066         }
2067     }
2068     else
2069     {
2070         ERR("-- no text\n");
2071     }
2072
2073     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_a(szOut),dwReturn);
2074     return dwReturn;
2075 }
2076
2077  /**************************************************************************
2078  *  _ILSimpleGetTextW
2079  *
2080  * gets the text for the first item in the pidl (eg. simple pidl)
2081  *
2082  * returns the length of the string
2083  */
2084 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
2085 {
2086     DWORD   dwReturn;
2087     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
2088
2089     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
2090
2091     if (pFileStructW) {
2092         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
2093         dwReturn = lstrlenW(pFileStructW->wszName);
2094     } else {
2095         GUID const * riid;
2096         WCHAR szTemp[MAX_PATH];
2097         LPSTR szSrc;
2098         LPWSTR szSrcW;
2099         dwReturn=0;
2100
2101         if (!pidl)
2102             return 0;
2103
2104         if (szOut)
2105             *szOut = 0;
2106
2107         if (_ILIsDesktop(pidl))
2108         {
2109             /* desktop */
2110             if (HCR_GetClassNameW(&CLSID_ShellDesktop, szTemp, MAX_PATH))
2111             {
2112                 if (szOut)
2113                     lstrcpynW(szOut, szTemp, uOutSize);
2114
2115                 dwReturn = lstrlenW (szTemp);
2116             }
2117         }
2118         else if (( szSrcW = _ILGetTextPointerW(pidl) ))
2119         {
2120             /* unicode filesystem */
2121             if (szOut)
2122                 lstrcpynW(szOut, szSrcW, uOutSize);
2123
2124             dwReturn = lstrlenW(szSrcW);
2125         }
2126         else if (( szSrc = _ILGetTextPointer(pidl) ))
2127         {
2128             /* filesystem */
2129             MultiByteToWideChar(CP_ACP, 0, szSrc, -1, szTemp, MAX_PATH);
2130
2131             if (szOut)
2132                 lstrcpynW(szOut, szTemp, uOutSize);
2133
2134             dwReturn = lstrlenW (szTemp);
2135         }
2136         else if (( riid = _ILGetGUIDPointer(pidl) ))
2137         {
2138             /* special folder */
2139             if ( HCR_GetClassNameW(riid, szTemp, MAX_PATH) )
2140             {
2141                 if (szOut)
2142                     lstrcpynW(szOut, szTemp, uOutSize);
2143
2144                 dwReturn = lstrlenW (szTemp);
2145             }
2146         }
2147         else
2148         {
2149             ERR("-- no text\n");
2150         }
2151     }
2152
2153     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_w(szOut),dwReturn);
2154     return dwReturn;
2155 }
2156
2157 /**************************************************************************
2158  *
2159  *    ### 4. getting pointers to parts of pidls ###
2160  *
2161  **************************************************************************
2162  *  _ILGetDataPointer()
2163  */
2164 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
2165 {
2166     if(!_ILIsEmpty(pidl))
2167         return (LPPIDLDATA)pidl->mkid.abID;
2168     return NULL;
2169 }
2170
2171 /**************************************************************************
2172  *  _ILGetTextPointerW()
2173  * gets a pointer to the unicode long filename string stored in the pidl
2174  */
2175 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl)
2176 {
2177     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2178
2179     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2180
2181     if (!pdata)
2182         return NULL;
2183
2184     switch (pdata->type)
2185     {
2186     case PT_GUID:
2187     case PT_SHELLEXT:
2188     case PT_YAGUID:
2189         return NULL;
2190
2191     case PT_DRIVE:
2192     case PT_DRIVE1:
2193     case PT_DRIVE2:
2194     case PT_DRIVE3:
2195         /*return (LPSTR)&(pdata->u.drive.szDriveName);*/
2196         return NULL;
2197
2198     case PT_FOLDER:
2199     case PT_FOLDER1:
2200     case PT_VALUE:
2201     case PT_IESPECIAL1:
2202     case PT_IESPECIAL2:
2203         /*return (LPSTR)&(pdata->u.file.szNames);*/
2204         return NULL;
2205
2206     case PT_WORKGRP:
2207     case PT_COMP:
2208     case PT_NETWORK:
2209     case PT_NETPROVIDER:
2210     case PT_SHARE:
2211         /*return (LPSTR)&(pdata->u.network.szNames);*/
2212         return NULL;
2213
2214     case PT_VALUEW:
2215         return (LPWSTR)pdata->u.file.szNames;
2216     }
2217     return NULL;
2218 }
2219
2220
2221 /**************************************************************************
2222  *  _ILGetTextPointer()
2223  * gets a pointer to the long filename string stored in the pidl
2224  */
2225 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
2226 {
2227     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
2228
2229     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2230
2231     if (!pdata)
2232         return NULL;
2233
2234     switch (pdata->type)
2235     {
2236     case PT_GUID:
2237     case PT_SHELLEXT:
2238     case PT_YAGUID:
2239         return NULL;
2240
2241     case PT_DRIVE:
2242     case PT_DRIVE1:
2243     case PT_DRIVE2:
2244     case PT_DRIVE3:
2245         return pdata->u.drive.szDriveName;
2246
2247     case PT_FOLDER:
2248     case PT_FOLDER1:
2249     case PT_VALUE:
2250     case PT_IESPECIAL1:
2251     case PT_IESPECIAL2:
2252         return pdata->u.file.szNames;
2253
2254     case PT_WORKGRP:
2255     case PT_COMP:
2256     case PT_NETWORK:
2257     case PT_NETPROVIDER:
2258     case PT_SHARE:
2259         return pdata->u.network.szNames;
2260
2261     case PT_CPLAPPLET:
2262         return pdata->u.cpanel.szName;
2263     }
2264     return NULL;
2265 }
2266
2267 /**************************************************************************
2268  *  _ILGetSTextPointer()
2269  * gets a pointer to the short filename string stored in the pidl
2270  */
2271 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2272 {
2273     /* TRACE(pidl,"(pidl%p)\n", pidl); */
2274
2275     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2276
2277     if (!pdata)
2278         return NULL;
2279
2280     switch (pdata->type)
2281     {
2282     case PT_FOLDER:
2283     case PT_VALUE:
2284     case PT_IESPECIAL1:
2285     case PT_IESPECIAL2:
2286         return pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1;
2287
2288     case PT_WORKGRP:
2289         return pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1;
2290     }
2291     return NULL;
2292 }
2293
2294 /**************************************************************************
2295  * _ILGetGUIDPointer()
2296  *
2297  * returns reference to guid stored in some pidls
2298  */
2299 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2300 {
2301     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2302
2303     TRACE("%p\n", pidl);
2304
2305     if (!pdata)
2306         return NULL;
2307
2308     TRACE("pdata->type 0x%04x\n", pdata->type);
2309     switch (pdata->type)
2310     {
2311     case PT_SHELLEXT:
2312     case PT_GUID:
2313     case PT_YAGUID:
2314         return &(pdata->u.guid.guid);
2315
2316     default:
2317         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2318         break;
2319     }
2320     return NULL;
2321 }
2322
2323 /******************************************************************************
2324  * _ILGetFileStructW [Internal]
2325  *
2326  * Get pointer the a SHITEMID's FileStructW field if present
2327  *
2328  * PARAMS
2329  *  pidl [I] The SHITEMID
2330  *
2331  * RETURNS
2332  *  Success: Pointer to pidl's FileStructW field.
2333  *  Failure: NULL
2334  */
2335 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
2336     FileStructW *pFileStructW;
2337     WORD cbOffset;
2338
2339     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
2340         return NULL;
2341
2342     cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
2343     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
2344
2345     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
2346      * style with a FileStructW member. If we switch all our shellfolder-implementations to
2347      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
2348     if ((cbOffset & 0x1) || /* FileStructW member is word aligned in the pidl */
2349         /* FileStructW is positioned after FileStruct */
2350         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
2351         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
2352         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
2353         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
2354     {
2355         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
2356         return NULL;
2357     }
2358
2359     return pFileStructW;
2360 }
2361
2362 /*************************************************************************
2363  * _ILGetFileDateTime
2364  *
2365  * Given the ItemIdList, get the FileTime
2366  *
2367  * PARAMS
2368  *      pidl        [I] The ItemIDList
2369  *      pFt         [I] the resulted FILETIME of the file
2370  *
2371  * RETURNS
2372  *     True if Successful
2373  *
2374  * NOTES
2375  *
2376  */
2377 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2378 {
2379     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2380
2381     if (!pdata)
2382         return FALSE;
2383
2384     switch (pdata->type)
2385     {
2386     case PT_FOLDER:
2387     case PT_VALUE:
2388         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2389         break;
2390     default:
2391         return FALSE;
2392     }
2393     return TRUE;
2394 }
2395
2396 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2397 {
2398     FILETIME ft,lft;
2399     SYSTEMTIME time;
2400     BOOL ret;
2401
2402     if (_ILGetFileDateTime( pidl, &ft ))
2403     {
2404         FileTimeToLocalFileTime(&ft, &lft);
2405         FileTimeToSystemTime (&lft, &time);
2406
2407         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2408         if (ret)
2409         {
2410             /* Append space + time without seconds */
2411             pOut[ret-1] = ' ';
2412             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2413         }
2414     }
2415     else
2416     {
2417         pOut[0] = '\0';
2418         ret = FALSE;
2419     }
2420     return ret;
2421 }
2422
2423 /*************************************************************************
2424  * _ILGetFileSize
2425  *
2426  * Given the ItemIdList, get the FileSize
2427  *
2428  * PARAMS
2429  *    pidl     [I] The ItemIDList
2430  *    pOut     [I] The buffer to save the result
2431  *    uOutsize [I] The size of the buffer
2432  *
2433  * RETURNS
2434  *    The FileSize
2435  *
2436  * NOTES
2437  *    pOut can be null when no string is needed
2438  *
2439  */
2440 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2441 {
2442     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2443     DWORD dwSize;
2444
2445     if (!pdata)
2446         return 0;
2447
2448     switch (pdata->type)
2449     {
2450     case PT_VALUE:
2451         dwSize = pdata->u.file.dwFileSize;
2452         if (pOut)
2453             StrFormatKBSizeA(dwSize, pOut, uOutSize);
2454         return dwSize;
2455     }
2456     if (pOut)
2457         *pOut = 0x00;
2458     return 0;
2459 }
2460
2461 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2462 {
2463     char szTemp[MAX_PATH];
2464     const char * pPoint;
2465     LPCITEMIDLIST  pidlTemp=pidl;
2466
2467     TRACE("pidl=%p\n",pidl);
2468
2469     if (!pidl)
2470         return FALSE;
2471
2472     pidlTemp = ILFindLastID(pidl);
2473
2474     if (!_ILIsValue(pidlTemp))
2475         return FALSE;
2476     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2477         return FALSE;
2478
2479     pPoint = PathFindExtensionA(szTemp);
2480
2481     if (!*pPoint)
2482         return FALSE;
2483
2484     pPoint++;
2485     lstrcpynA(pOut, pPoint, uOutSize);
2486     TRACE("%s\n",pOut);
2487
2488     return TRUE;
2489 }
2490
2491 /*************************************************************************
2492  * _ILGetFileType
2493  *
2494  * Given the ItemIdList, get the file type description
2495  *
2496  * PARAMS
2497  *      pidl        [I] The ItemIDList (simple)
2498  *      pOut        [I] The buffer to save the result
2499  *      uOutsize    [I] The size of the buffer
2500  *
2501  * RETURNS
2502  *    nothing
2503  *
2504  * NOTES
2505  *    This function copies as much as possible into the buffer.
2506  */
2507 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2508 {
2509     char sType[64];
2510
2511     if(_ILIsValue(pidl))
2512     {
2513         char sTemp[64];
2514
2515         if(uOutSize > 0)
2516             pOut[0] = 0;
2517         if (_ILGetExtension (pidl, sType, 64))
2518         {
2519             if (HCR_MapTypeToValueA(sType, sTemp, 64, TRUE))
2520             {
2521                 /* retrieve description */
2522                 if(HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE ))
2523                     return;
2524             }
2525             /* display Ext-file as description */
2526             strcpy(pOut, sType);
2527             _strupr(pOut);
2528             /* load localized file string */
2529             sTemp[0] = '\0';
2530             if(LoadStringA(shell32_hInstance, IDS_SHV_COLUMN1, sTemp, 64))
2531             {
2532                 sTemp[63] = '\0';
2533                 strcat(pOut, "-");
2534                 strcat(pOut, sTemp);
2535             }
2536         }
2537     }
2538     else
2539     {
2540         pOut[0] = '\0';
2541         LoadStringA(shell32_hInstance, IDS_DIRECTORY, pOut, uOutSize);
2542         /* make sure its null terminated */
2543         pOut[uOutSize-1] = '\0';
2544     }
2545 }
2546
2547 /*************************************************************************
2548  * _ILGetFileAttributes
2549  *
2550  * Given the ItemIdList, get the Attrib string format
2551  *
2552  * PARAMS
2553  *      pidl        [I] The ItemIDList
2554  *      pOut        [I] The buffer to save the result
2555  *      uOutsize    [I] The size of the Buffer
2556  *
2557  * RETURNS
2558  *     Attributes
2559  *
2560  * FIXME
2561  *  return value 0 in case of error is a valid return value
2562  *
2563  */
2564 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2565 {
2566     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2567     WORD wAttrib = 0;
2568     int i;
2569
2570     if (!pData)
2571         return 0;
2572
2573     switch(pData->type)
2574     {
2575     case PT_FOLDER:
2576     case PT_VALUE:
2577         wAttrib = pData->u.file.uFileAttribs;
2578         break;
2579     }
2580
2581     if(uOutSize >= 6)
2582     {
2583         i=0;
2584         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2585             pOut[i++] = 'R';
2586         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2587             pOut[i++] = 'H';
2588         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2589             pOut[i++] = 'S';
2590         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2591             pOut[i++] = 'A';
2592         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2593             pOut[i++] = 'C';
2594         pOut[i] = 0x00;
2595     }
2596     return wAttrib;
2597 }
2598
2599 /*************************************************************************
2600  * ILFreeaPidl
2601  *
2602  * frees an aPidl struct
2603  */
2604 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2605 {
2606     UINT   i;
2607
2608     if (apidl)
2609     {
2610         for (i = 0; i < cidl; i++)
2611             SHFree(apidl[i]);
2612         SHFree(apidl);
2613     }
2614 }
2615
2616 /*************************************************************************
2617  * ILCopyaPidl
2618  *
2619  * copies an aPidl struct
2620  */
2621 LPITEMIDLIST* _ILCopyaPidl(const LPCITEMIDLIST * apidlsrc, UINT cidl)
2622 {
2623     UINT i;
2624     LPITEMIDLIST *apidldest;
2625
2626     if (!apidlsrc)
2627         return NULL;
2628
2629     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2630
2631     for (i = 0; i < cidl; i++)
2632         apidldest[i] = ILClone(apidlsrc[i]);
2633
2634     return apidldest;
2635 }
2636
2637 /*************************************************************************
2638  * _ILCopyCidaToaPidl
2639  *
2640  * creates aPidl from CIDA
2641  */
2642 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, const CIDA * cida)
2643 {
2644     UINT i;
2645     LPITEMIDLIST *dst;
2646
2647     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2648     if (!dst)
2649         return NULL;
2650
2651     if (pidl)
2652         *pidl = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[0]]));
2653
2654     for (i = 0; i < cida->cidl; i++)
2655         dst[i] = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[i + 1]]));
2656
2657     return dst;
2658 }